Garmin Forerunner 165: AMOLED Running Watch, 19 Hours GPS (£200)
The Garmin Forerunner 165 is a 43 mm running smartwatch with an AMOLED touchscreen and button controls. We have not tested it. This page collects what Tredz lists and the current price.
Available now: Garmin Forerunner 165 — £199.99 at Tredz (listed RRP £199.99), correct at time of writing, 20 October 2026.

What the retailer lists
- Display: AMOLED touchscreen with button controls.
- Battery: up to 11 days in smartwatch mode and up to 19 hours in GPS mode.
- Size: 43 mm.
- Tracking: built-in GPS and wrist-based heart rate, with 25+ activity profiles including running and cycling.
- Training: Garmin Coach and race-adaptive plans, daily suggested workouts, training effect and recovery time.
- Health: a morning report with sleep, recovery and HRV status.
- Extras: Garmin Pay, smart notifications, and incident detection on select outdoor activities.
Where it fits for triathletes
The points below are our reading of the listed features, not test results.
- Run-focused. Garmin positions it as a running watch, so a triathlete who wants full multisport features should compare it with the Forerunner 970 before buying.
- Battery. 19 hours of GPS covers most race distances up to a half-iron, but check the figure against your slowest expected finish.
Where to buy
Tredz lists the Garmin Forerunner 165 at £199.99 at time of writing, and the link below goes to the same product page.
Related guides
See also our best triathlon watches under £300 guide and the Garmin Forerunner 170 page.
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